Write a note on agricultural / horticultural applications of auxins.

Explanation

1) IBA, NAA and IAA help to initiate rooting in stem cuttings, widely used for plant propagation in horticulture.
2) Auxins like 2,4-D, 2,4,5-T acts as herbicides and kills broad leaved dicot weeds to prepare weed - free lawns.
3) Auxins stimulates fruit growth.
Ex: Tomatoes.
4) Auxins induces flowering in pineapple.
5) Prevents pre harvest fruit drop.